Munch, Theodore W. <br/><br/>
What is light. 
Pictures: Gregory Orloff. 
 - Chicago,  Benefic Press  [1960] 
 - 47 p.  illus.  21 cm. 
 - The What is it series .
<br/><br/><label>LCCN: </label>60006588  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers--Science.
<br/><br/><label>LC Class. No.: </label>PE1127.S3  / M85 
<br/><br/><label>Dewey Class. No.: </label>535